Signal scrambling method and apparatus, and signal descrambling method and apparatus

    公开(公告)号:US10973020B2

    公开(公告)日:2021-04-06

    申请号:US16176433

    申请日:2018-10-31

    Abstract: A signal scrambling method and apparatus, and a signal descrambling method and apparatus are disclosed. In the signal scrambling method, a communications apparatus scrambles a signal by using a scrambling sequence, and sends the scrambled signal. In the signal descrambling method, a communications apparatus receives a signal, and descrambles the signal by using a scrambling sequence. An initial value of the scrambling sequence is determined based on a time unit number corresponding to a frame structure parameter used for transmitting the signal, so that different scrambling sequences can be used to scramble signals that are transmitted by using different frame structure parameters. Therefore, interference randomization can be implemented for signal scrambling, and this can be applicable to various application scenarios in 5G NR to improve performance.

    Measurement method, and apparatus
    82.
    发明授权

    公开(公告)号:US10944457B2

    公开(公告)日:2021-03-09

    申请号:US16270290

    申请日:2019-02-07

    Abstract: The present application discloses a measurement method and an apparatus, so that a measurement result meets a CoMP requirement while feedback overheads are reduced. The measurement method includes: sending, by a first network device, a restricted channel state information CSI measurement instruction to a second network device, where the restricted CSI measurement instruction is used to instruct the second network device to perform restricted CSI measurement; and receiving, by the first network device, CSI sent by the second network device, where the CSI is generated after the CSI measurement is completed based on the CSI measurement instruction.

    Power configuration method and device

    公开(公告)号:US10932208B2

    公开(公告)日:2021-02-23

    申请号:US16794073

    申请日:2020-02-18

    Abstract: A power configuration method and a device, the power configuration method including sending, by a first network device, M power configuration parameters to a second network device, where the M power configuration parameters are corresponding to M antenna port sets, wherein at least one of the M antenna port sets belongs to the first network device, where each power configuration parameter is used to calculate power of a downlink data channel between a corresponding antenna port set and the second network device, and where M is an integer greater than or equal to 2.

    Uplink Antenna Selection Method and Apparatus

    公开(公告)号:US20210013936A1

    公开(公告)日:2021-01-14

    申请号:US17033119

    申请日:2020-09-25

    Abstract: A method includes: receiving, from a network device, an index of a precoding matrix and a quantity of layers for uplink transmission; determining a first target codebook based on the quantity of layers for uplink transmission and a quantity of physical antennas of a communications apparatus, where the first target codebook includes a plurality of first precoding matrices; and determining, based on a first target precoding matrix that corresponds to the index and that is in the plurality of first precoding matrices, a target physical antenna used by the communications apparatus to send uplink information.

    Uplink transmission power control method and user equipment

    公开(公告)号:US10887846B2

    公开(公告)日:2021-01-05

    申请号:US15668299

    申请日:2017-08-03

    Abstract: An uplink transmission power control method and a user equipment are provided, where the method includes: determining, by a UE, whether uplink channels are simultaneously transmitted over adjacent subframes between multiple carriers; where the adjacent subframes between the multiple carriers are partially overlapped; and timing advance values of the multiple carriers are different; and if uplink channels are simultaneously transmitted over adjacent subframes between multiple carriers, processing, by the user equipment, an uplink channel transmitted over the last symbol on a partially overlapped subframe of another carrier except a carrier having the greatest timing advance value, so that total transmission power of the uplink channels is lower than the maximum transmission power or an interference level of the user equipment.

    Channel state measurement method and apparatus

    公开(公告)号:US10771118B2

    公开(公告)日:2020-09-08

    申请号:US16145322

    申请日:2018-09-28

    Abstract: A channel state measurement method and an apparatus are provided. In embodiments of the present invention, a terminal receives CSI reporting mode indication information. The CSI reporting mode indication information is used to instruct the terminal to perform joint CSI measurement and feedback based on N pieces of associated CSI measurement configuration information. Therefore, the terminal may perform CSI measurement and feedback according to the CSI reporting mode indication information, so as to implement CSI measurement and feedback in a scenario in which a plurality of coordinated transmission points perform coordinated transmission.

    Method for reporting channel status and device

    公开(公告)号:US10757688B2

    公开(公告)日:2020-08-25

    申请号:US15578171

    申请日:2015-02-04

    Abstract: A method for reporting a channel status and a device are disclosed. A user equipment UE uses M cells to transmit data, and the method includes: transmitting, by the base station, configuration signaling to the UE, where the configuration signaling includes a reporting period of channel state information CSI of N cells in the M cells; transmitting, by the base station, channel status request signaling to the UE, where the channel status request signaling is used to instruct the UE to report the CSI of the N cells; and receiving, by the base station, CSI of a cell that is in the N cells and that is managed by the base station, where the CSI is transmitted by the UE according to the reporting period. A corresponding base station and a corresponding user equipment are further disclosed.

    Communication method, and related device and system

    公开(公告)号:US10756861B2

    公开(公告)日:2020-08-25

    申请号:US16674186

    申请日:2019-11-05

    Abstract: Embodiments of this application disclose a communication method, and a related device and system. The method includes: receiving, by a reception point, first indication information, where the first indication information is used to indicate a time-frequency resource location of a first demodulation reference signal of first data; receiving, by the reception point, second indication information, where the second indication information is used to indicate a time-frequency resource location of a second demodulation reference signal; and determining, by the reception point, a time-frequency resource location of the first data based on the time-frequency resource location of the second demodulation reference signal, and demodulating the first data based on the first demodulation reference signal. Receiving performance of the reception point can be improved. On the premise that a resource conflict does not occur, two base stations communicate with a terminal device by using a time-frequency resource allocated by a second base station.

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